Home / 7,380,148.80-11,071,778.40-3,118,123.20

Finding the Fourth Proportional to 7,380,148.80, 11,071,778.40 and 3,118,123.20

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Solution

The fourth proportional to 7,380,148.80, 11,071,778.40 and 3,118,123.20 is: 4,677,841.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,380,148.80 : 11,071,778.40 = 3,118,123.20 : x
  2. Step 2: Convert to fraction form
    7,380,148.80/11,071,778.40 = 3,118,123.20/x
  3. Step 3: Cross multiply
    7,380,148.80x = 11,071,778.40 × 3,118,123.20
  4. Step 4: Simplify right side
    7,380,148.80x = 34,523,169,094,298.88
  5. Step 5: Solve for x
    x = 34,523,169,094,298.88/7,380,148.80
  6. Step 6: Final answer
    x = 4,677,841.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.